<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="animate.js"></script>
    <script src="index.js"></script>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        
        li {
            list-style: none;
        }
        
        div {
            position: relative;
            overflow: hidden;
            margin: 100px auto;
            width: 721px;
            height: 455px;
            background-color: pink;
        }
        
        .banner {
            position: absolute;
            top: 0;
            left: 0;
            width: 800%;
        }
        
        .banner li {
            float: left;
        }
        
        span:nth-of-type(1),
        span:nth-of-type(2) {
            position: absolute;
            top: 50%;
            margin-top: -10px;
            display: block;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background-color: red;
            z-index: 100;
            display: none;
        }
        
        span:nth-of-type(1) {
            left: 0;
        }
        
        span:nth-of-type(2) {
            right: 0;
        }
        
        .littleround {
            position: absolute;
            bottom: 20px;
            left: 300px;
        }
        
        .littleround li {
            float: left;
            margin-right: 16px;
            width: 16px;
            height: 16px;
            border: 1px solid white;
            border-radius: 50%;
            z-index: 9999;
        }
        
        .littleroundcolor {
            background-color: red;
        }
    </style>
</head>

<body>
    <div>
        <!-- banner图片 -->
        <ul class="banner">
            <li>
                <a href="#"><img src="upload/focus.jpg" alt=""></a>
            </li>
            <li>
                <a href="#"><img src="upload/focus1.jpg" alt=""></a>
            </li>
            <li>
                <a href="#"><img src="upload/focus2.jpg" alt=""></a>
            </li>
            <li>
                <a href="#"><img src="upload/focus3.jpg" alt=""></a>
            </li>
        </ul>
        <!-- 左右按钮 -->
        <span><</span>
        <span>></span>
        <!-- 小圆点 -->
        <ul class="littleround">
        </ul>
    </div>
</body>

</html>